Odd One Out – Railway Reasoning

The number of letters skipped in between the adjacent letters is in a decreasing sequence is only in option
(A). i.e. V-5=Q, Q-4=M, M-3=J, J-2=H

Out of the four given options, three are alike, (51,24), (42,15), (72,45), because in all these three cases, the difference between the first and second number is
(51 - 24) = 27 ⇒ (42 - 15) = 27
(72 - 45) = 27,
But, for the number pair, (32,13), the difference = 19
So, the odd one is (32,13)

Only in the option 2, (+) sign is there.

Reset of the option have (×) sign instead of (+) sign.

Faithful, Devoted, Loyal are synonyms. The word, treacherous, is different because it means guilty of betrayal or deception which is opposite of the other three words.

In the letter-cluster BEJS, the letters skipped between adjacent letters are in the same order as given in the question i.e. 2¹ = 2, 2² = 4, 2³ = 8
(B CD E FGHI J KLMNOPQR S)

5/10 is not in simplest form.
Rest are in simplest form.

All numbers are divisible by 3 except 2336.

8 + 4 + 3 + 7 = 22,
7 + 4 + 9 + 3 = 23,
6 + 5 + 8 + 9 = 28 but 5 + 4 + 2 + 5 = 51

sum of 1st digit and 3rd digit = 2nd digit

4, 7, 13, 26, 49, 97
In the above series the pattern is:
4 × 2 – 1 = 7 ⇒ 7 × 2 – 1 = 13
Similarly:
13 × 2 – 1 = 25 ⇒ 25 × 2 – 1 = 49
49 × 2 – 1 = 97
So, the wrong term = 26